Triumph Twins / Triples Replacement Camshafts (1) - Choose Cam Type / Application PART # - CAM TYPE - APPLICATION - BRAND:70-4039 / E4039 (Exhaust) - T100A - NOS Triumph M Part number is 57-1897

M Part number is 57-1897 or T1897

Fits Triumph 350 & 500 Pre-Unit Twins from 1952-1956

Fits BSA 500 & 650 Unit "Road Model" Twins (Lightning

Install a new bearing locking ring for your machine today by choosing from our English made replacement parts

Also fits various Triumph Trident models and Triumph Pre-Unit 650 Gearboxes

Triumph Twins / Triples Replacement Camshafts (1) - Choose Cam Type / Application PART # - CAM TYPE - APPLICATION - BRAND:70-4039 / E4039 (Exhaust) - T100A - NOS Triumph M Part number is 57-1897Selecting a new camshaft is now easier than ever. We have a full line of new Triumph camshafts by L. F. Harris & Hepolite. We have included all the specs you need below to help make a selection easy and convenient based off year, model and your specific application Each cam by L. F. Harris & Hepolite comes ground to the proper bearing journal specs as well as nitrided cam lobes for maximum wear resistance. Choose from "stock" or "custom" cam grinds